Improvement in beaters for cotton-openers



2 Sheets,Sheei 1.

R. KIT SON.

IBEATERS FOR COTTON-OPENERS. Nu 170,675. Patented Dec. 7,1875.

l v I V k r r V B e T [new nior.

NPETERS. PHOTO-uncanny; WASHINGION. D C.

2 Sheets-Sheet 2.

R. KITSON.

BEATERS FORYCOTTON-OPENERS. v N 170,675, ,Patentgd Dec. 7,1875.

KPETERS. PHOTO'UTHOGRAPHER, WASNINGYON. 01C,

UNITED STATES PATENT OFFICE.

\MPROVEMENT IN BEATERS FOR COTTON-OPENERS.

Specification forming part of Letters Patent No. 1570,,675, datedDecember 7, 1875; application filed June 21, 1875.

To all whom it may concern:

Be it known that I, Brennan KiTsoN, of Lowell, in the State ofMassachusetts, have in vented Improvements in Machines for Opening andPreparing Cotton, of which the following is a specification:

My invention relates to the beater used in machines for opening andbeating or preparin g cotton or other fibrous substances; and consistsin the wire arm B, in combination with the shaft and blades of acotton-beater, and also in the means by which the arm B is securelyattached to the shaft and the blades, substantially as explained in thefollowing description.

In the drawings, Figures 1 and 4 are plan views of my improved beater,with part of the upper half nearly removed, in a section through thecenter of the shaft and arms at theirintersection, showing the manner inwhich the shaft, arm, and blade are secured together. Fig. 2 is asection of Fig. 1 through the line 3 y. Fig. 3 is a section of Fig. 1through the line :0 m. Fig. 5 is a section of Fig. 4through the line 2:z.

A is the shaft of the beater, adapted to revolve in suitable boxes atthe ends and be propelled by the usual machinery in such machines, andin the usual way, and which may be provided, as shown in Figs. 1. and 2,with perforations to receive the arms B B and with close boxes orthimbles e e, for strengthening the shaft and bracing the arms, orsimply with small perforations for pins 0 a when they are put around theshaft, as shown in Fig. 4. B B B B are double arms, constructed ofseveral strands of tempered steel, or other elastic and resilient metal,twisted together and formedin such a manner as to contain the loops at aat the extremities, and also, when they pass around the shaft, with theloop I) at the middle, to enable them to be attached securely to theshaft and blades, as hereinafter described. These arms are shown inFig.1 as passing directly through the perforations in the shaft A, andso held in boxes 6 e, having the interstices filled with Babbitt orother metal, and the whole may be fastened, further, by a pin passingtransversely through the shaft and the arms at the center of theirintersection. The arms B B are also shown in Figs; 4 and 5 as attachedto the shaft in a manner which I prefer, as at once simpler and moresecure, having the strands of the arm 13' divided at the proper point,forming the loop I), tightly inclosing the shaft A, so that half thestrands pass around on one side and half on the other, and also havingthe pin 0 inserted through each segment of the loop b and the shaft A,and thus completely preventing the arm 13' from turning on the shaft. Bythis construction the center of the beater is made much lighter than inany other way, and the saved weight may be carried to the blades, so asto increase the effectiveness and save power. The blades 0 C areprovided with the thiinbles or lugs h h, which may be either inserted inthe blade or formed in solid piece thereon, through which are largeperforations to receive the extremities of the arms, and smallperforations to receive the pins d d, as shown in Figs. 4 and 5. Intothe lugs h h are inserted the extremities of the arm 13', having theloops at a, within the lugs. The interstices are then filled withBabbitt or other metal, and the pins (1 d are inserted in the smallperforations in the lugs h h, and through the loops a a, the wholeforming a perfectly firm and secure juncture of the arm and blade.

1 am aware that beater-arms have heretofore been constructed of a solidpiece of steel, tempered so as to form a yielding spring; but thedifliculty of this method is, that the solid spring-arm, made of propersize, is very difficult or almost impossible to temper, so as to give itthe requisite elasticity and preserve its tenacity so that it will notbreak when in operation, and destroy the machine and endanger the livesof the operators, and the solid spring beater-arm is of necessitycomparatively heavier toward and about the shaft than the arm of twistedwires. It is evident, however, that the twisted steel-wire arms I haveshown can be easily and cheaply tempered to a proper elasticity withoutsensibly impairing their strength, as each wire of the strand is smallenough to take its temper uniformly throughout.

By my method of construction, it will be RICHARD KITSON, OF LOWELL,MASSACHUSETTS, ASSIGNOR TO 'KITSON MACHINE COMPANY.

seen that a practical elastic arm is made that 'great elasticity is 0btain ed, with great strength,

tenacity, and firmness of arm; that the shaft and arms are much lighterin proportionate weight, while the blade can be, and is, correspondinglyheavier, so as to do more work with less power. Hence, the efficiencyand safety of the beater are insured, While the difficulties heretoforeexisting are completely overcome.

What I claim as new and my invention is s 2. The double beater a'r'iii,provided with loops a a at the extremities for securing them to theblade, substantially as described.

3. The combination of the beater-blade G .and the lug h with thebeater-arm, provided with the loop a, substantially as described.

4. The combination, with the beater-shaft A,

of the twisted-wire beater-arm, whose strands are divided and encompassthe shaft, substantially as described. I

RICHARD KITSON.

Witnesses:

A. G. GUMNocK, SAML. E. STOTT.

